NASA NTRS · 19700000611
Laser beam hydrocarbon detector
Abstract
Portable instrument passes light from helium-neon laser at a wavelength of 3.39 microns through the atmosphere being monitored and measures attenuation of the laser beam. Since beam attenuation is due almost exclusively to absorption of radiation by hydrocarbons, a quantitative measure of their concentration is available.
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Beam, B. H., Burrous, C. N., Jaynes, D. N.. 1970-11-01. Laser beam hydrocarbon detector. https://ntrs.nasa.gov/citations/19700000611
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